hg: jdk9/hs-rt/hotspot: 8152905: hs_err file is missing gc threads

[derek.white at oracle.com]

Changeset: c1b104997b4d
Author:    drwhite
Date:      2016-04-13 17:00 -0400
URL:       http://hg.openjdk.java.net/jdk9/hs-rt/hotspot/rev/c1b104997b4d

8152905: hs_err file is missing gc threads
Summary: List the GC threads in the hs_err file in the "Other Threads" section
Reviewed-by: dcubed, coleenp

! src/share/vm/gc/g1/g1CollectedHeap.cpp
! src/share/vm/gc/g1/g1ConcurrentMark.cpp
! src/share/vm/gc/g1/g1ConcurrentMark.hpp
! src/share/vm/runtime/thread.cpp
! src/share/vm/runtime/thread.hpp